Environmental Rules in Auburn, WA (2026)
4 verified environmental rules for Auburn, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Auburn follows the Department of Ecology Western Washington Stormwater Manual through ACC Title 13 surface water code, requiring runoff control for new and redeveloped sites in the Green River watershed.
Stormwater Rules in Auburn
Heavy RestrictionsWA Dept. of Ecology Stormwater Management Manuals
Stormwater manuals Our stormwater manuals provide stormwater permit implementation and management guidance. Contact your municipality or permit administrator to determine which manual you need and for questions regarding implementation of stormwater management guidance. Ecology's Stormwater Management Manuals (SWMMs) The dropdowns below provide access to past and present SWMMs. Ecology's S...
Erosion Control
Auburn requires temporary erosion and sediment control (TESC) plans for clearing and grading per ACC Title 15 and the Ecology stormwater manual, with wet-season rules limiting soil disturbance from October to April.
Erosion Control Rules in Auburn
Heavy RestrictionsFlood Zones
Auburn regulates construction in FEMA-mapped Zone AE floodplains along the Green River and White River under ACC Title 15.68 and the Critical Areas Ordinance, requiring elevation and flood vents.
Flood Zone Rules in Auburn
Heavy RestrictionsFEMA Flood Map Service Center
FEMA Flood Map Service Center: Welcome! Looking for a Flood Map? Enter an address, a place, or longitude/latitude coordinates: Looking for more than just a current flood map? Visit Search All Products to access the full range of flood risk products for your community. About Flood Map Service Center The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard informatio...
Grading & Drainage
Grading permits are required in Auburn for fills, cuts, and landscape regrades beyond thresholds in ACC Title 15, with drainage plans reviewed by Public Works under the Ecology Stormwater Manual.
Grading and Drainage Rules in Auburn
Heavy RestrictionsLooking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Auburn city rules.
Environmental Rules in King County →